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UniProtKB - P23702 (LTXB_AGGAC)

Entry version 131 (02 Dec 2020)
Sequence version 1 (01 Nov 1991)
Previous versions | rss
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Protein

Leukotoxin export ATP-binding protein LtxB

Gene

ltxB

Organism
Aggregatibacter actinomycetemcomitans (Actinobacillus actinomycetemcomitans) (Haemophilus actinomycetemcomitans)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Involved in the export of the LtxA leukotoxin.1 Publication

Caution

Leu-9 is present instead of the conserved Cys which is expected to be the active site residue of peptidase C39. Thus they are presumed to be without peptidase activity.Curated

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei83PROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi502 – 509ATPPROSITE-ProRule annotation8

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionTranslocase
Biological processTransport
LigandATP-binding, Nucleotide-binding

Protein family/group databases

Transport Classification Database

More...TCDBi		3.A.1.109.8, the atp-binding cassette (abc) superfamily

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Leukotoxin export ATP-binding protein LtxB (EC:7.4.2.5By similarity)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:ltxB1 Publication
Synonyms:AaLtb1 Publication, lktB1 Publication
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiAggregatibacter actinomycetemcomitans (Actinobacillus actinomycetemcomitans) (Haemophilus actinomycetemcomitans)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri714 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteria › Proteobacteria › Gammaproteobacteria › Pasteurellales › Pasteurellaceae › Aggregatibacter

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei158 – 178HelicalSequence analysisAdd BLAST21
Transmembranei191 – 211HelicalSequence analysisAdd BLAST21
Transmembranei269 – 289HelicalSequence analysisAdd BLAST21
Transmembranei295 – 315HelicalSequence analysisAdd BLAST21
Transmembranei387 – 407HelicalSequence analysisAdd BLAST21

GO - Cellular componenti

Complete GO annotation on QuickGO ...

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Mutation has no effect on the levels of leukotoxin mRNA, but mutants have significantly less total leukotoxin than the parent strain.1 Publication

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000923771 – 707Leukotoxin export ATP-binding protein LtxBAdd BLAST707

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Levels of toxin expression vary greatly among strains. Highly leukotoxic strains (JP2-type strains) produce more LtxA protein and ltx mRNA than minimally leukotoxic strains (652-type strains). Variations are probably due to different types of promoters.1 Publication

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Probably part of a complex composed of LtxB, LtxD and TdeA, which forms a single transport channel across the two membranes.

1 Publication

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		694569.D7S_00603

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		P23702

Database of comparative protein structure models

More...ModBasei		Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini4 – 125Peptidase C39PROSITE-ProRule annotationAdd BLAST122
Domaini158 – 436ABC transmembrane type-1PROSITE-ProRule annotationAdd BLAST279
Domaini468 – 703ABC transporterPROSITE-ProRule annotationAdd BLAST236

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the ABC transporter superfamily. Protein-1 exporter (TC 3.A.1.109) family. [View classification]Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG2274, Bacteria

Family and domain databases

Conserved Domains Database

More...CDDi		cd02417, Peptidase_C39_likeA, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.20.1560.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR003593, AAA+_ATPase
IPR011527, ABC1_TM_dom
IPR036640, ABC1_TM_sf
IPR003439, ABC_transporter-like
IPR017871, ABC_transporter_CS
IPR010132, ATPase_T1SS_HlyB
IPR027417, P-loop_NTPase
IPR005074, Peptidase_C39
IPR039395, Peptidase_C39-like_A
IPR039421, Type_I_exporter

The PANTHER Classification System

More...PANTHERi		PTHR24221, PTHR24221, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00664, ABC_membrane, 1 hit
PF00005, ABC_tran, 1 hit
PF03412, Peptidase_C39, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00382, AAA, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52540, SSF52540, 1 hit
SSF90123, SSF90123, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01846, type_I_sec_HlyB, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS50929, ABC_TM1F, 1 hit
PS00211, ABC_TRANSPORTER_1, 1 hit
PS50893, ABC_TRANSPORTER_2, 1 hit
PS50990, PEPTIDASE_C39, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

P23702-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MDSQKNTNLA LQALEVLAQY HNISINPEEI KHKFDIDGHG LNQTKWLLAA 
        60         70         80         90        100
KSLGLKVRTA NKTVDRLPFL HLPALAWRDD GEHFILLKID QETDRYLIFD 
       110        120        130        140        150
LIQKNPIVLD KNEFEERYQS KVILIASRAS IVGNLAKFDF TWFIPAVIKY 
       160        170        180        190        200
RKIFIETLIV SIFLQIFALI TPLFFQVVMD KVLVHRGFST LNVITVALAI 
       210        220        230        240        250
VVLFEIILGG LRTYVFAHST SRIDVELGAR LFRHLLALPI SYFEARRVGD 
       260        270        280        290        300
TVARVRELDQ IRNFLTGQAL TSILDLLFSF IFFAVMWYYS PKLTLVVLGS 
       310        320        330        340        350
LPCYVIWSVF ISPILRRRLD DKFARNADNQ SFLVESVTAI NTIKAMAISP 
       360        370        380        390        400
QMTNIWDKQL ASYVAVSFKV TVLATIGQQG IQLIQKAVMV INLWLGAHLV 
       410        420        430        440        450
ISGDLSIGQL IAFNMLAGQI ISPVIRLAQI WQDFQQVGIS VTRLGDVLNS 
       460        470        480        490        500
PTENNTASVS LPEIQGEISF RNIKFRYKPD SPMILNNINL DISQGEVIGI 
       510        520        530        540        550
VGRSGSGKST LTKLIQRFYI PEQGQVLIDG HDLALADPNW LRRQVGVVLQ 
       560        570        580        590        600
DNVLLNRSIR ENIALTNPGM PMEKVIAAAK LAGAHDFISE LREGYNTVVG 
       610        620        630        640        650
EQGAGLSGGQ RQRIAIARAL VNNPRILIFD EATSALDYES ENIIMHNMHK 
       660        670        680        690        700
ICQNRTVLII AHRLSTVKNA DRIIVMDKGE IIEQGKHQEL LKDEKGLYSY 

LHQLQVN
Length:707
Mass (Da):79,579
Last modified:November 1, 1991 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iCA564EACF46DF4FB
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
X53955 Genomic DNA Translation: CAA37906.1

Protein sequence database of the Protein Information Resource

More...PIRi		A61378

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X53955 Genomic DNA Translation: CAA37906.1
PIRiA61378

3D structure databases

SMRiP23702
ModBaseiSearch...

Protein-protein interaction databases

STRINGi694569.D7S_00603

Protein family/group databases

TCDBi3.A.1.109.8, the atp-binding cassette (abc) superfamily

Phylogenomic databases

eggNOGiCOG2274, Bacteria

Family and domain databases

CDDicd02417, Peptidase_C39_likeA, 1 hit
Gene3Di1.20.1560.10, 1 hit
InterProiView protein in InterPro
IPR003593, AAA+_ATPase
IPR011527, ABC1_TM_dom
IPR036640, ABC1_TM_sf
IPR003439, ABC_transporter-like
IPR017871, ABC_transporter_CS
IPR010132, ATPase_T1SS_HlyB
IPR027417, P-loop_NTPase
IPR005074, Peptidase_C39
IPR039395, Peptidase_C39-like_A
IPR039421, Type_I_exporter
PANTHERiPTHR24221, PTHR24221, 1 hit
PfamiView protein in Pfam
PF00664, ABC_membrane, 1 hit
PF00005, ABC_tran, 1 hit
PF03412, Peptidase_C39, 1 hit
SMARTiView protein in SMART
SM00382, AAA, 1 hit
SUPFAMiSSF52540, SSF52540, 1 hit
SSF90123, SSF90123, 1 hit
TIGRFAMsiTIGR01846, type_I_sec_HlyB, 1 hit
PROSITEiView protein in PROSITE
PS50929, ABC_TM1F, 1 hit
PS00211, ABC_TRANSPORTER_1, 1 hit
PS50893, ABC_TRANSPORTER_2, 1 hit
PS50990, PEPTIDASE_C39, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiLTXB_AGGAC
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P23702
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1991
Last sequence update: November 1, 1991
Last modified: December 2, 2020
This is version 131 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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